Apparatus for tensioning and sealing metal bands around packing cases and other packages



April 10, 1928. 1,665,328

. A C. PAYNE APPARATUS FOR TBNSIONENG AND SEALING METAL BANDS AROUND PACKING CASES AND OTHER PACKAGES Filed Feb. 17. 1926 2 Sheets-Sheet l April m, was.

565,323 A. C. PAYNE v APPARATUS FOR TENSIONING AND SEALING METAL BANDS AROUND I PACKING CASES AND OTHER PACKAGES Filed Feb. 17. 1926 2 Sheets-Sheet 2 MENTOR MJM l v one e Patented Apr. 10, 1928} Anrnon enemas rants,

' COMPANY l'Jlll'JiI'IjElD, OF LONDON, ENGLAED,

'rnnnnnp. V APPARATUS ron'rnnsromivo or nonnon, rinennnnn'ssrenon 'ro PACKERS SUPPLY a portrait! or ennnrnnrrenr AND Applicationflled February 17, 1926, Serial n6. 88,945, and in Great Britain r n a, was,

This invention relates to apparatus for tensioning and-sealing metal bands around ypacking cases and'other packages.

Apparatus according Comprises a fixed'ban'd gripping jaw and movable band gripping jaw, adapted tobe' fed towards the fixed jaw to tension the.

band, and sealing mechanism movably mounted to swing 1n the same plane as the m band so that it can be moved into position to seal the overlapping ends of theband after te'nsionin'g. The ten'sioning is effected by any mechanical arrangement suitable for causing objects to approach in straight line such as a rack and pinion and ratchet lever and the sealing mechanism, which is preferably gripping j'a'w on an axis transverse to the direction of the band and "also slidable in a direction perpendicular to the pivot axis, so that for sealing the mechanism is swung round over the overlapping ends of the band and then slid down so as to move in proper anism without it being necessary for the oporator to hold the overlapping ends in position or for himto feed the hand through the sealing-strip. gThesemeans can takethe' "form of one or a plurality of guide pieces.

attached to the base-plate, or with a thick .base plate of suitable raised portions. left by cutting away portions of the plate.

' either. or both jaw carriersor gripping 4 .pawls. It may -:.be found-desirable to use some combination-of the foregoing methods toachieve satisfactory results.

However accilrately the band gripping er of the pro-.

jaws are made there is a dan jecting ends getting distort'e either so that .an edge is no longerin one plane or'so that ge o'f one-projecting end is at a dif-- to this invention of the'kind .described in Patent Np, 1,474,207, is conveniently pivOtedoVer one strip over the overlapping .en"

ternatively guide pieces can lie attached to.

ing the operation 0 Figu ferent-height jecting on In either, case there is a danger of the joint being improperly-made. Perpendicular surfaces are used to prevent the. first; form of distortion. placed on the inner side .of the band on either or both sides of-each pawl gripping device or on each side of the band. In the latter case the outside uide pieces. mu'stlbe movably 'mounted to afiow of the apparatus being removed afterthe joint has been made. Such movable guide pieces maybe rigidly attached to the gripping pawls orthey may be spring mounted. The second form of distortion of the projecting ends is overcome jecting end of the to the other edge of that pro- AND smnrne mn'ran mm anormn' racxme casns AND ornnn racxaens.

They may be .by ressing the sealing lateofthe sealing mec anism on the to si e of the upper roand and forcing oth projecting ends down until the bottom sur I.

face of the lower into contact with one'or. more guide pieces;

\The sealing strip may be inserted in the jaws of the sealin mechanism prior f latter being bro-ug t into action. It may be found more convenient to place the. sealin 1 .in whic case vertical surfaces perpe'ndic 'aws ofthe sealing mechanism 'lar to the. edge. of the. band are used. These are so v that when the seal is placed in poprojecting end is brought the horizontal surface ofbrought down centrally over it.

of the ban shall not be raised unnecessarily high in order that the reduction in tension shall not be'excessive on the removal of the apparatus;

but that they shall be. high enough to allow for the'free rotation of the projecting. edges ofthe sealing stripdurwrappingthem round view of the apparatus -Up'on the area Figure is a rear --view,"partly in section of. the apparatus with the sealing mechanism in t e operative sition.

a with the sealing mechanism remove Figure 4 is a detail plan view, partly 1n section, of the.sealing'mechanisnnand Figure 5 is a detail view, partly in sectio The apparatus comprises a base plate 1' I providedwith an upstanding bracket 2 and -carries by one end a guide'f member 3. A v carriage 4 is sli dably mounted on the guide Iii-member. '3 and carries on as indle 5 apin ion 6meshing with a rack cutinorsecured to the guide member 3; A bifurcated handflever 8 is also pivoted on the spindle- 5 and carries a pivoted pawl=9 arranged so so that the lever can turn the pinion'6 insuch a direction as to feed the carriages towards the bracket 2. The pawl 9 isnormally pressed-against the pinion 6 by the action of aspring (not shown)'on' a'rod 10 which zi'passesthrou h the hand lever Sand termiob 11 which .on depression" T brought down on t'o' the band. '3 One ofthe' guides-may hex-made slightly higher than,

passes above the other whenltensioning is 'nates in p a causes the awl to be'lifted out of engageine'nt with t e pinion; The carriage 4is pro vided-with a pair of penis-12,13, prewed 30 bysprings 33- against the pinion 6 so as to.

" hold the carriage 4 in the position to which it has'beenfed by th I =pawls 12, 13, are of difierent leng ths their operative end's being a half (or one-and-a half, or two-and-half etc); tooth pitches ,rovidedyp Factions/15 .on"the hand lever when it is rnoved to thejendof, its movement, thus lift-' mg the ,pawls12, 13, out of engagement with 1 a "the m1on"an d allo'w n the carri to be slid ck tothegeiiteren' of the guide? where. it is checked-by afshoulde r 16,.

- -Band grippm jaws are provided onthe bracket 2 andt e'; carriage. 4. These iiaws a fixed serrated surface 17 and a curved ser} rated sui facei. 18 on a pivoted ;member '19 provided within handlelilo, the contours .of'

the serrated surfaces-being arranged: so:- that the tension of the'band automatically-tightens the'jgrlp. Stops 21 prevent the serrated. siurfac'es from 'beingaccidently jammed and damaged. The jaws are arranged line and at equal distances from the guide 3. s

"ends; of -a metal band grippedm the -aws int.

F1gure3 is a plan-view oft he ap 'aratus o .cient heightto 'permitthc jaws o the-seal onan enlarged scale, of'the ratchet 'the-projecting ends oi the band to be out of e han'd lever. The

;base p1ate. The'guidinsu faces are adapt--. .100

apart, in other wordsfor a given spacing,- ends'of the bandso thatfclea'rance below t 'theiteethm'ay he made twice as strong as for their operative ends suitably.

are of the usual construction, of

' olded into the horizontal 1, it v-ali he place in a narrow clearanceon the .e'nd The pltmedllfeinte nsioninigm dg.- 'Iv 7' asfell'ews:

' that when the-hand lever: 8 is, operated the I.-

aband around a package may glolva'rda one: another in.

r "of the guide member-ahndjthe apparatus? ,sg ed on the packingcaseor other package,

:: at a distance apart'eqnal' totheilength ing mechanism. to wrap.the 'sealing strip round the-band while the sealing operation I takes place.v The length of the guides is greater than they width oftheband and they 73 are stepped at 22 and 23 (Figure 3) so as to centre the ends of the band and to allow the sealin jaws to pass over them and make a proper einh'eve'n 1f thereis a tendency for the central-position. The perpelt idicular stop 4 25 also aids in'entering the'ban I L .The'steppedends 22 and 23 of the guides 24., beyond the width of the band, ensures the sealing strip being properly centred in the sealing jawslongitudinally of the band, since this revents theunclosed sealing strip from slid ng along the band. The" sealing strip'mayeither be placed-in -position on the band and the" seahngmechanismglbrought down onto it, or it may be held in the jaws of 'the sealing-mechanism before they are.

the other to ensure that one end-o the band 'efl'ectdQ In an i alternative construction maybe formed-by remov n portions of the ed to regulate the heigt of the projectingthe band is left fo r-the rotationof the pro jectingredges of the sealingstrip in the op-. I

eration-ofi wrap in the ends of the-band: The mec amsm 26 which'is referably of the-kind described in prior. atent- "No, 1,474,267 of Nov; 133'; 1923,15 slidablyl carricdon uides 27 on a bracket 28 and held on the racket bya headed pin'29 pass- "fisshaped" that it can move; through 90 4 from a horizontal position 'to a vertical po-,

a'nisin can be toithe bandas fullydescribed in the above atentt. 'When'Z-the.sea1ing(mechanism is 1 with the: seal ng band and can o f-a packing case.

The carriage-4 is 'n ovedout' to the outer end.

ing' through a slot in the bracket. The! 'rsition; When in the vertical losition (Fig-5, ures 2;and"4 the sealing, 'mech slid downintothe-operation position a ainst the action of a sprin -31, ESealing is e ected .by 'themovement' o the jaws 26 transverse 12 position, as in Fig,

from the coil. A seal is then placed in posivtion. Finally,-the sealing mechanism 26 is 'moved. into position and the ends of the band sealed. During the operation of sealing the machine is held by the handle 32. The gripping jaws may then be released and the apparatus removed; What I claim is 1. Apparatus for tensioning and sealing metal bands around packages comprising a base member, a fixed band clamp thereon, a second band clamp slidable on said base, means for causing said slidable clamp to be fed towards said fixed clamp, guiding means for maintaining the ends ot'th'e band in correct lateral position for sealing and of such a,

height as to allow of the projecting'edges of the sealing strip being wrapped around the overlapping ends of the band before the operation of deformation andsealing mechanism mounted adjacent to one of said clamps so as'to enable it to be moved down on to the band. I

2: Apparatus for tensioning and sealing metal bands around packages comprising a base member, a fixed band clamp thereon, a second hand clamp slidable on said base, means for causing said slidable clamp to be fed towards saidfixed clamp,notched guides (ill on said base member adapted to receive and laterally guide the ends of the band and of such a height as to allow of the projecting edges of the sealing strip being wrapped around the overlapplng ends of the band before the operation of deformation and sealing mechanism-mounted adjacent to one of said clamps so as to enable it to be moved down on to the bands.

3. Apparatus for tensioning and-sealin metal bands around packages comprising a base member, a fixed band clamp thereon, a second hand clamp slidable on said base,

means for causing said slidable clamp to be. fed towards said fixed clamp, a guide memberpivoted to said base on a pivot transverse to the plane of the metal bands adjacent to one of said clamps, and sealing mechanism slidably carried on said guide member.

4. Apparatus for tensioning and sealing metal bands around packages comprising a base member, a fixed bandclamp thereon, a second band clamp slidable on said base,

means for causing said slidable clamp to be fed towards said fixed clamp, guiding means for maintaining the ends of the band in correctlateral position forreceiving the seal strip, a guide member pivoted to said base on a pivot transverse to the plane of the metal bands adjacent to one of said clamps,

and sealing mechanism slidably carried on said guide member.

5. Apparatus for tensioning and sealing metal bands around packages comprising a base member, a fixed" band clamp thereon, a rack thereon, a carriage slidable on saidbase, a band clamp on said carriage, a pinion pivoted on said carriage meshing with said rack, a lever pivoted on said carriage, ratchet means connecting said lever with said pinion, and sealing means positioned on a vertical guide embodied in said apparatus and pivotally connected with said base member for movement into a plane parallel to the metal bands.

6. Apparatus for tensioning and sealing metal bands around packages comprising a base member, a fixed band clamp thereon, a rack thereon, a carriage slidable on said base, a band clamp on said carriage, a pinion pivoted on said carriage meshing with said rack, a lever pivoted on said carriage, ratchet means connectingsaid lever with said pinion, a plurality of pawls pivoted on said carriage having their operating ends bearing on said pinion spaced apart at fractional lengths of the pinion tooth pitch, and sealing means pivoted adjacent to one of said clamps.

7-. Apparatus for tensioning and sealing metal bands around packages comprising a base member, a fixed band clamp thereon, a rack thereon, a carriage slidable on said base, a band clamp on said carriage, a pinion pivoted on said carriage meshing with said rack, a lever pivoted on said carriage, ratchet means connecting said lever with said pinion, pawl means onsaid carriage adapted to prevent reverse rotation of sa1 pinion, a stop on said lever adapted to disengage said pawl means when in its extreme position, and sealing means pivoted adjacent to onevof said clamps.

8. Apparatus for tensioning and sealing metal bands around packages comprising a base member, a fixed band clamp thereon, a rack thereon, a carriage slidable on said base, a band clamp on said carriage, a pinion pivoted on said carriage meshing with said rack, a lever pivoted on said carriage, ratchet means connecting said lever with said pinion, a plurality of pawls pivoted on lie sealing mechanism slidably carried on said guide member.

9. Apparatus for tensioning and sealing metal bands around packages comprising a 5 base member, a fixed band clamp thereon, a second band clamp slidable on said base, means for causing said slidable clamp to be fed towards said fixed clamp, a guide member pivoted to said base member adjacent one of said clamps, a sealing mechanism slidable on said gulde member and means for retracting said mechanism on said guide, said sealname to this specification.

ARTHUR CHARLES PAYNE. 

